Need new exhaust valves

[Tyler77]

I was taking a look at The exhaust valves after I pulled the manifold off today, I found one that Has chip out of it and the rest are all really burnt kind of looking. I know that the valve stem seals have Not been sealed completely for a period of time.
So upon start up it has blown blue smoke burning the oil that leaked through the stem seals
after I found the chipped exhaust valves I realized I’m gonna be doing a cylinder head job.
Oh yeah and the engine is B6d.
anyway I’m lookin at replacing some exhaust valves along with everything else I’m going to be doing .
anybody have any good experience with the engine tech exhaust valves on rock auto, or should I go oem style and hand out some $

advice?
thanks guys

[Tyler77]

Ok well I’ve been looking at the Supertech valve set for the miata, b6ze. Looks like a pretty good deal, they should fit the B6d I’m thinking. I’m thinking of getting the high flow oversize set.
the idea of putting a turbo on her is enticing so while I’ve got the cylinder head off I figure i may as well upgrade the valves.

has anyone done such a thing on their engine builds